Space Link Extension - Service Management - CCSDS

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DRAFT RECOMMENDED STANDARD FOR SPACE LINK EXTENSION SERVICE MANAGEMENT NOTE – The failure of syntactic and authentication validation and/or message set validation of an UnrecognizedMessageSetResponse, an Invalid- MessageResponse, or a Confirmation from the Recipient will eventually result in the expiration of the associated disposition timer, which results in the Notifier’s informing the Recipient of the event by other means. Upon receipt of an UnrecognizedMessageSetResponse, the Recipient performs exception response validation in accordance with the Receive and Validate SLE-SM Exception Response activity subgroup of the Document Exchange Protocol activity group specified in 3.3. The Recipient attempts to correlate the contents of the syntactically correct UnrecognizedMessageSetResponse with a Confirmation that has been sent by the Recipient. If the UnrecognizedMessageSetResponse can be correlated to a Confirmation, the Recipient informs the Notifier (by other means) that it received the Notification. The Recipient may also perform local functions to determine why the Confirmation was not validated by the Notifier). 3.4.3.3 Sequence Diagram Figure 3-25 is the sequence diagram for the notified operation procedure pattern. It is composed of multiple instances of the Send Message sequence specified in figure 3-4. ConfirmedNotificationProcedurePattern {notifier, recipient, Notification, Confirmation} notifier recipient ref Send Message (Notification, notifier, recipient) ref Send Message (Confirmation, recipient, notifier) Figure 3-25: Sequence Diagram for Notified Operation Procedure Pattern 3.4.3.4 State Machines Figures 3-26 and 3-27 are the state diagrams for the notified operation procedure pattern from the points of view of the operation Notifier and Receiver, respectively. Tables 3-34 and 3-35 are the corresponding state tables. <strong>CCSDS</strong> 910.11-R-2 Page 3-59 March 2008
DRAFT RECOMMENDED STANDARD FOR SPACE LINK EXTENSION SERVICE MANAGEMENT state machine Notified Operation Notifier need to notify / op_N Notified op_C tmeout / notify by other means exception return / notify by other means Figure 3-26: State Diagram for Notified Operation Pattern—Notifier View state machine Notified Operation Recipient op_N Validating valid / op_C not valid / discard Figure 3-27: State Diagram for Notified Operation Pattern—Recipient View Table 3-34: State Table for Notified Operation—Notifier View State Initial Notified Event op-N sent -> Notified - op-C - -> Final Exception response - Contact performer -> Final Notified Op Timeout - Contact performer -> Final <strong>CCSDS</strong> 910.11-R-2 Page 3-60 March 2008
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Draft Recommendation for Space Data
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DRAFT RECOMMENDED STANDARD FOR SPAC
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CCSDS 910.11-R-2 Page 2-5 March 200
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Space Link Extension - Service Management - CCSDS

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